Initial commit of akmon project
This commit is contained in:
521
doc_zhipao/analytics_rpc_functions.sql
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521
doc_zhipao/analytics_rpc_functions.sql
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-- Analytics 页面 RPC 函数 SQL 语句
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-- 运动训练监测与AI评估平台 - 教师数据分析功能
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-- 1. 获取教师统计数据 (get_teacher_analytics)
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CREATE OR REPLACE FUNCTION public.get_teacher_analytics(
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p_teacher_id uuid DEFAULT NULL,
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p_start_date date DEFAULT NULL,
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p_end_date date DEFAULT NULL
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)
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RETURNS TABLE(
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total_students integer,
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total_assignments integer,
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completion_rate numeric,
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average_score numeric,
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active_classes integer,
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total_submissions integer,
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pending_reviews integer,
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graded_submissions integer
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)
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LANGUAGE plpgsql
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SECURITY DEFINER
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AS $$
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DECLARE
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v_teacher_id uuid;
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v_start_date date;
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v_end_date date;
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BEGIN
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-- 参数处理
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v_teacher_id := COALESCE(p_teacher_id, auth.uid());
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v_start_date := COALESCE(p_start_date, CURRENT_DATE - INTERVAL '30 days');
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v_end_date := COALESCE(p_end_date, CURRENT_DATE);
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-- 确保是教师用户
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IF NOT EXISTS (
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SELECT 1 FROM public.ak_users
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WHERE id = v_teacher_id AND role = 'teacher'
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) THEN
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RAISE EXCEPTION '用户不是教师或不存在';
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END IF;
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RETURN QUERY
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WITH teacher_classes AS (
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-- 获取教师关联的班级
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SELECT DISTINCT uc.class_id
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FROM public.ak_user_classes uc
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WHERE uc.user_id = v_teacher_id
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AND uc.role = 'teacher'
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),
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class_students AS (
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-- 获取班级中的学生
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SELECT DISTINCT uc.user_id as student_id, uc.class_id
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FROM public.ak_user_classes uc
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INNER JOIN teacher_classes tc ON uc.class_id = tc.class_id
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WHERE uc.role = 'student'
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),
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teacher_assignments AS (
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-- 获取教师的作业
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SELECT a.*
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FROM public.ak_assignments a
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INNER JOIN teacher_classes tc ON a.class_id = tc.class_id
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WHERE a.created_at::date BETWEEN v_start_date AND v_end_date
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),
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assignment_stats AS (
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-- 作业统计
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SELECT
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COUNT(DISTINCT cs.student_id) as student_count,
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COUNT(DISTINCT ta.id) as assignment_count,
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COUNT(asub.id) as total_submission_count,
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COUNT(CASE WHEN asub.score IS NOT NULL THEN 1 END) as graded_count,
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COUNT(CASE WHEN asub.score IS NULL AND asub.id IS NOT NULL THEN 1 END) as pending_count,
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AVG(CASE WHEN asub.score IS NOT NULL THEN asub.score END) as avg_score
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FROM class_students cs
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CROSS JOIN teacher_assignments ta
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LEFT JOIN public.ak_assignment_submissions asub
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ON ta.id = asub.assignment_id
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AND cs.student_id = asub.student_id
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)
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SELECT
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COALESCE(ast.student_count, 0)::integer,
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COALESCE(ast.assignment_count, 0)::integer,
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CASE
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WHEN ast.student_count > 0 AND ast.assignment_count > 0
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THEN ROUND((ast.total_submission_count::numeric / (ast.student_count * ast.assignment_count) * 100), 2)
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ELSE 0
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END,
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COALESCE(ROUND(ast.avg_score, 2), 0),
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(SELECT COUNT(DISTINCT class_id) FROM teacher_classes)::integer,
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COALESCE(ast.total_submission_count, 0)::integer,
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COALESCE(ast.pending_count, 0)::integer,
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COALESCE(ast.graded_count, 0)::integer
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FROM assignment_stats ast;
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END;
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$$;
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-- 为函数添加注释
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COMMENT ON FUNCTION public.get_teacher_analytics IS '获取教师统计数据：学生数、作业数、完成率、平均分等';
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-- 2. 获取优秀学员排行 (get_top_performers)
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CREATE OR REPLACE FUNCTION public.get_top_performers(
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p_teacher_id uuid DEFAULT NULL,
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p_start_date date DEFAULT NULL,
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p_end_date date DEFAULT NULL,
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p_limit integer DEFAULT 10
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)
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RETURNS TABLE(
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student_id uuid,
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name text,
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username text,
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avatar_url text,
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score numeric,
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submission_count integer,
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completion_rate numeric,
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class_name text,
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rank_position integer
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)
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LANGUAGE plpgsql
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SECURITY DEFINER
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AS $$
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DECLARE
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v_teacher_id uuid;
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v_start_date date;
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v_end_date date;
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v_limit integer;
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BEGIN
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-- 参数处理
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v_teacher_id := COALESCE(p_teacher_id, auth.uid());
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v_start_date := COALESCE(p_start_date, CURRENT_DATE - INTERVAL '30 days');
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v_end_date := COALESCE(p_end_date, CURRENT_DATE);
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v_limit := COALESCE(p_limit, 10);
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-- 确保是教师用户
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IF NOT EXISTS (
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SELECT 1 FROM public.ak_users
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WHERE id = v_teacher_id AND role = 'teacher'
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) THEN
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RAISE EXCEPTION '用户不是教师或不存在';
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END IF;
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RETURN QUERY
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WITH teacher_classes AS (
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-- 获取教师关联的班级
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SELECT DISTINCT uc.class_id, c.name as class_name
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FROM public.ak_user_classes uc
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INNER JOIN public.ak_classes c ON uc.class_id = c.id
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WHERE uc.user_id = v_teacher_id
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AND uc.role = 'teacher'
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),
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class_students AS (
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-- 获取班级中的学生
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SELECT DISTINCT uc.user_id as student_id, uc.class_id, tc.class_name
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FROM public.ak_user_classes uc
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INNER JOIN teacher_classes tc ON uc.class_id = tc.class_id
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WHERE uc.role = 'student'
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),
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teacher_assignments AS (
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-- 获取教师的作业
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SELECT a.*
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FROM public.ak_assignments a
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INNER JOIN teacher_classes tc ON a.class_id = tc.class_id
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WHERE a.created_at::date BETWEEN v_start_date AND v_end_date
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),
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student_performance AS (
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-- 学生表现统计
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SELECT
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cs.student_id,
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cs.class_name,
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u.username,
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COALESCE(up.avatar_url, u.avatar_url) as avatar_url,
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COUNT(asub.id) as submission_count,
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COUNT(ta.id) as total_assignments,
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AVG(CASE WHEN asub.score IS NOT NULL THEN asub.score END) as avg_score,
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CASE
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WHEN COUNT(ta.id) > 0
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THEN ROUND((COUNT(asub.id)::numeric / COUNT(ta.id) * 100), 2)
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ELSE 0
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END as completion_rate
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FROM class_students cs
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INNER JOIN public.ak_users u ON cs.student_id = u.id
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LEFT JOIN public.ak_user_profiles up ON u.id = up.user_id
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CROSS JOIN teacher_assignments ta
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LEFT JOIN public.ak_assignment_submissions asub
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ON ta.id = asub.assignment_id
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AND cs.student_id = asub.student_id
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GROUP BY cs.student_id, cs.class_name, u.username, up.avatar_url, u.avatar_url
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HAVING COUNT(asub.id) > 0 -- 只显示有提交记录的学生
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),
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ranked_students AS (
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SELECT
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sp.*,
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ROW_NUMBER() OVER (
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ORDER BY
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COALESCE(sp.avg_score, 0) DESC,
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sp.completion_rate DESC,
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sp.submission_count DESC
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) as rank_pos
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FROM student_performance sp
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)
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SELECT
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rs.student_id,
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COALESCE(u.username, '未知学员') as name,
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rs.username,
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rs.avatar_url,
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COALESCE(ROUND(rs.avg_score, 2), 0) as score,
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rs.submission_count::integer,
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rs.completion_rate,
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rs.class_name,
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rs.rank_pos::integer
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FROM ranked_students rs
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INNER JOIN public.ak_users u ON rs.student_id = u.id
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WHERE rs.rank_pos <= v_limit
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ORDER BY rs.rank_pos;
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END;
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$$;
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-- 为函数添加注释
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COMMENT ON FUNCTION public.get_top_performers IS '获取优秀学员排行榜：按平均分、完成率排序';
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-- 3. 获取图表数据 (get_chart_data)
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CREATE OR REPLACE FUNCTION public.get_chart_data(
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p_teacher_id uuid DEFAULT NULL,
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p_start_date date DEFAULT NULL,
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p_end_date date DEFAULT NULL,
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p_type text DEFAULT 'completion_rate'
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)
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RETURNS TABLE(
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date_key date,
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value numeric,
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label text,
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count integer
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)
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LANGUAGE plpgsql
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SECURITY DEFINER
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AS $$
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DECLARE
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v_teacher_id uuid;
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v_start_date date;
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v_end_date date;
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v_type text;
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BEGIN
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-- 参数处理
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v_teacher_id := COALESCE(p_teacher_id, auth.uid());
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v_start_date := COALESCE(p_start_date, CURRENT_DATE - INTERVAL '30 days');
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v_end_date := COALESCE(p_end_date, CURRENT_DATE);
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v_type := COALESCE(p_type, 'completion_rate');
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-- 确保是教师用户
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IF NOT EXISTS (
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SELECT 1 FROM public.ak_users
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WHERE id = v_teacher_id AND role = 'teacher'
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) THEN
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RAISE EXCEPTION '用户不是教师或不存在';
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END IF;
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-- 根据类型返回不同的图表数据
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IF v_type = 'completion_rate' THEN
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-- 作业完成率趋势
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RETURN QUERY
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WITH teacher_classes AS (
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SELECT DISTINCT uc.class_id
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FROM public.ak_user_classes uc
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WHERE uc.user_id = v_teacher_id AND uc.role = 'teacher'
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),
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date_series AS (
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SELECT generate_series(v_start_date, v_end_date, '1 day'::interval)::date as date_key
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),
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daily_stats AS (
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SELECT
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ds.date_key,
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COUNT(DISTINCT a.id) as assignments_due,
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COUNT(asub.id) as submissions_made
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FROM date_series ds
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LEFT JOIN public.ak_assignments a ON ds.date_key = a.due_date::date
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AND a.class_id IN (SELECT class_id FROM teacher_classes)
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LEFT JOIN public.ak_assignment_submissions asub ON a.id = asub.assignment_id
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AND asub.submit_time::date <= ds.date_key
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GROUP BY ds.date_key
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)
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SELECT
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dst.date_key,
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CASE
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WHEN dst.assignments_due > 0
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THEN ROUND((dst.submissions_made::numeric / dst.assignments_due * 100), 2)
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ELSE 0
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END as value,
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'完成率' as label,
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dst.submissions_made::integer as count
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FROM daily_stats dst
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WHERE dst.assignments_due > 0 OR dst.submissions_made > 0
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ORDER BY dst.date_key;
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ELSIF v_type = 'score_distribution' THEN
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-- 成绩分布
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RETURN QUERY
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WITH teacher_classes AS (
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SELECT DISTINCT uc.class_id
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FROM public.ak_user_classes uc
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WHERE uc.user_id = v_teacher_id AND uc.role = 'teacher'
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),
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score_ranges AS (
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SELECT
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CASE
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WHEN asub.score >= 90 THEN '90-100'
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WHEN asub.score >= 80 THEN '80-89'
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WHEN asub.score >= 70 THEN '70-79'
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WHEN asub.score >= 60 THEN '60-69'
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ELSE '60以下'
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END as score_range,
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asub.score
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FROM public.ak_assignment_submissions asub
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INNER JOIN public.ak_assignments a ON asub.assignment_id = a.id
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INNER JOIN teacher_classes tc ON a.class_id = tc.class_id
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WHERE asub.score IS NOT NULL
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AND asub.submit_time::date BETWEEN v_start_date AND v_end_date
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)
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SELECT
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v_start_date as date_key, -- 使用开始日期作为占位符
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0::numeric as value, -- 不使用value字段
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sr.score_range as label,
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COUNT(*)::integer as count
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FROM score_ranges sr
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GROUP BY sr.score_range
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ORDER BY
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CASE sr.score_range
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WHEN '90-100' THEN 1
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WHEN '80-89' THEN 2
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WHEN '70-79' THEN 3
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WHEN '60-69' THEN 4
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WHEN '60以下' THEN 5
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END;
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ELSIF v_type = 'submission_trend' THEN
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-- 提交趋势
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RETURN QUERY
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WITH teacher_classes AS (
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SELECT DISTINCT uc.class_id
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FROM public.ak_user_classes uc
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WHERE uc.user_id = v_teacher_id AND uc.role = 'teacher'
|
||||
),
|
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date_series AS (
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||||
SELECT generate_series(v_start_date, v_end_date, '1 day'::interval)::date as date_key
|
||||
)
|
||||
SELECT
|
||||
ds.date_key,
|
||||
COUNT(asub.id)::numeric as value,
|
||||
'提交数量' as label,
|
||||
COUNT(asub.id)::integer as count
|
||||
FROM date_series ds
|
||||
LEFT JOIN public.ak_assignment_submissions asub ON ds.date_key = asub.submit_time::date
|
||||
LEFT JOIN public.ak_assignments a ON asub.assignment_id = a.id
|
||||
LEFT JOIN teacher_classes tc ON a.class_id = tc.class_id
|
||||
WHERE tc.class_id IS NOT NULL OR asub.id IS NULL
|
||||
GROUP BY ds.date_key
|
||||
ORDER BY ds.date_key;
|
||||
|
||||
ELSE
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-- 默认返回空结果
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||||
RETURN;
|
||||
END IF;
|
||||
END;
|
||||
$$;
|
||||
|
||||
-- 为函数添加注释
|
||||
COMMENT ON FUNCTION public.get_chart_data IS '获取图表数据：支持完成率趋势、成绩分布、提交趋势等类型';
|
||||
|
||||
-- 4. 获取近期活动数据 (get_recent_activities) - 额外的辅助函数
|
||||
CREATE OR REPLACE FUNCTION public.get_recent_activities(
|
||||
p_teacher_id uuid DEFAULT NULL,
|
||||
p_limit integer DEFAULT 20
|
||||
)
|
||||
RETURNS TABLE(
|
||||
activity_id uuid,
|
||||
activity_type text,
|
||||
title text,
|
||||
description text,
|
||||
student_name text,
|
||||
assignment_title text,
|
||||
activity_time timestamp with time zone,
|
||||
time_ago text
|
||||
)
|
||||
LANGUAGE plpgsql
|
||||
SECURITY DEFINER
|
||||
AS $$
|
||||
DECLARE
|
||||
v_teacher_id uuid;
|
||||
v_limit integer;
|
||||
BEGIN
|
||||
-- 参数处理
|
||||
v_teacher_id := COALESCE(p_teacher_id, auth.uid());
|
||||
v_limit := COALESCE(p_limit, 20);
|
||||
|
||||
-- 确保是教师用户
|
||||
IF NOT EXISTS (
|
||||
SELECT 1 FROM public.ak_users
|
||||
WHERE id = v_teacher_id AND role = 'teacher'
|
||||
) THEN
|
||||
RAISE EXCEPTION '用户不是教师或不存在';
|
||||
END IF;
|
||||
|
||||
RETURN QUERY
|
||||
WITH teacher_classes AS (
|
||||
SELECT DISTINCT uc.class_id
|
||||
FROM public.ak_user_classes uc
|
||||
WHERE uc.user_id = v_teacher_id AND uc.role = 'teacher'
|
||||
),
|
||||
recent_submissions AS (
|
||||
SELECT
|
||||
asub.id as activity_id,
|
||||
'assignment_submitted' as activity_type,
|
||||
u.username || '提交了作业：' || a.title as title,
|
||||
COALESCE(LEFT(asub.content_md, 100), '无描述') as description,
|
||||
u.username as student_name,
|
||||
a.title as assignment_title,
|
||||
asub.submit_time as activity_time
|
||||
FROM public.ak_assignment_submissions asub
|
||||
INNER JOIN public.ak_assignments a ON asub.assignment_id = a.id
|
||||
INNER JOIN public.ak_users u ON asub.student_id = u.id
|
||||
INNER JOIN teacher_classes tc ON a.class_id = tc.class_id
|
||||
WHERE asub.submit_time >= CURRENT_DATE - INTERVAL '7 days'
|
||||
),
|
||||
recent_assignments AS (
|
||||
SELECT
|
||||
a.id as activity_id,
|
||||
'assignment_created' as activity_type,
|
||||
'创建了新作业：' || a.title as title,
|
||||
COALESCE(LEFT(a.description, 100), '无描述') as description,
|
||||
'系统' as student_name,
|
||||
a.title as assignment_title,
|
||||
a.created_at as activity_time
|
||||
FROM public.ak_assignments a
|
||||
INNER JOIN teacher_classes tc ON a.class_id = tc.class_id
|
||||
WHERE a.created_at >= CURRENT_DATE - INTERVAL '7 days'
|
||||
AND a.teacher_id = v_teacher_id
|
||||
),
|
||||
all_activities AS (
|
||||
SELECT * FROM recent_submissions
|
||||
UNION ALL
|
||||
SELECT * FROM recent_assignments
|
||||
)
|
||||
SELECT
|
||||
aa.activity_id,
|
||||
aa.activity_type,
|
||||
aa.title,
|
||||
aa.description,
|
||||
aa.student_name,
|
||||
aa.assignment_title,
|
||||
aa.activity_time,
|
||||
CASE
|
||||
WHEN aa.activity_time > CURRENT_TIMESTAMP - INTERVAL '1 hour'
|
||||
THEN EXTRACT(EPOCH FROM (CURRENT_TIMESTAMP - aa.activity_time))::integer / 60 || '分钟前'
|
||||
WHEN aa.activity_time > CURRENT_TIMESTAMP - INTERVAL '1 day'
|
||||
THEN EXTRACT(EPOCH FROM (CURRENT_TIMESTAMP - aa.activity_time))::integer / 3600 || '小时前'
|
||||
ELSE EXTRACT(EPOCH FROM (CURRENT_TIMESTAMP - aa.activity_time))::integer / 86400 || '天前'
|
||||
END as time_ago
|
||||
FROM all_activities aa
|
||||
ORDER BY aa.activity_time DESC
|
||||
LIMIT v_limit;
|
||||
END;
|
||||
$$;
|
||||
|
||||
-- 为函数添加注释
|
||||
COMMENT ON FUNCTION public.get_recent_activities IS '获取近期活动：作业提交、新作业创建等';
|
||||
|
||||
-- 5. 创建必要的索引以优化查询性能
|
||||
CREATE INDEX IF NOT EXISTS idx_assignments_teacher_date ON public.ak_assignments(teacher_id, created_at);
|
||||
CREATE INDEX IF NOT EXISTS idx_assignments_class_due ON public.ak_assignments(class_id, due_date);
|
||||
CREATE INDEX IF NOT EXISTS idx_submissions_assignment_date ON public.ak_assignment_submissions(assignment_id, submit_time);
|
||||
CREATE INDEX IF NOT EXISTS idx_submissions_student_score ON public.ak_assignment_submissions(student_id, score) WHERE score IS NOT NULL;
|
||||
CREATE INDEX IF NOT EXISTS idx_user_classes_role ON public.ak_user_classes(user_id, class_id, role);
|
||||
|
||||
-- 6. 授权函数给authenticated用户
|
||||
GRANT EXECUTE ON FUNCTION public.get_teacher_analytics TO authenticated;
|
||||
GRANT EXECUTE ON FUNCTION public.get_top_performers TO authenticated;
|
||||
GRANT EXECUTE ON FUNCTION public.get_chart_data TO authenticated;
|
||||
GRANT EXECUTE ON FUNCTION public.get_recent_activities TO authenticated;
|
||||
|
||||
-- 7. 创建RLS策略确保数据安全
|
||||
-- 这些函数已经在内部进行了权限检查，但我们仍然可以为相关表添加RLS策略
|
||||
|
||||
-- 为作业表添加RLS策略（如果还没有的话）
|
||||
DO $$
|
||||
BEGIN
|
||||
IF NOT EXISTS (
|
||||
SELECT 1 FROM pg_policies
|
||||
WHERE tablename = 'ak_assignments'
|
||||
AND policyname = 'teachers_can_manage_own_assignments'
|
||||
) THEN
|
||||
CREATE POLICY "teachers_can_manage_own_assignments" ON public.ak_assignments
|
||||
FOR ALL TO authenticated
|
||||
USING (
|
||||
teacher_id = auth.uid() OR
|
||||
EXISTS (
|
||||
SELECT 1 FROM public.ak_user_classes uc
|
||||
WHERE uc.class_id = ak_assignments.class_id
|
||||
AND uc.user_id = auth.uid()
|
||||
AND uc.role = 'teacher'
|
||||
)
|
||||
);
|
||||
END IF;
|
||||
END;
|
||||
$$;
|
||||
|
||||
-- 插入示例数据用于测试（可选）
|
||||
-- INSERT INTO public.ak_languages (code, name, native_name, is_default) VALUES
|
||||
-- ('zh-CN', 'Chinese Simplified', '简体中文', true),
|
||||
-- ('en-US', 'English US', 'English (US)', false)
|
||||
-- ON CONFLICT (code) DO NOTHING;
|
||||
|
||||
-- 创建测试数据的函数
|
||||
CREATE OR REPLACE FUNCTION public.create_test_analytics_data()
|
||||
RETURNS void
|
||||
LANGUAGE plpgsql
|
||||
SECURITY DEFINER
|
||||
AS $$
|
||||
BEGIN
|
||||
-- 这个函数可以用来创建一些测试数据
|
||||
-- 实际部署时可以删除
|
||||
RAISE NOTICE '测试数据创建函数已准备就绪';
|
||||
END;
|
||||
$$;
|
||||
|
||||
COMMENT ON FUNCTION public.create_test_analytics_data IS '创建分析功能的测试数据（开发用）';
|
||||
Reference in New Issue
Block a user